Well drilling apparatus



Filed Aug. 11, 1928 a Sheets-Sheet 1 INVENTOR Mani 7 .w. SHELDON I ,900,

WELL DRILLING APPARATUS Filed Aug. 11, 1928 3 s -s 2 INVENTOR wwam ATTORNEY March 7, 1933. w SHELDON 1,900,135

WELL DRILLING APPARATUS Filed Aug. 11, 1928 3 Sheets-Sheet 3 INVEN'I OP 10W wume/ Wmmmm Mm eii fmoer, @F eemmemeoe,

e ewe Agapiieeizlom M eflm Ho, eeeeeen o This ievemion relates perfiieoieriy x3e a'zhe hoist or eo-ee'fiedrew werke of TO bfiTy wefi e'irfils,

fpeeiel oejeezte of izhe invemoion ere ee provide e Eloise which 'ee epez'eeel efi: Foeth and low epeefie enel een be ehifzt e51 "Wiihoui; seop aimg from ome, speed into the other; which fab e hg3; epeefi drive take up the Reed fwom the low speed drive gradually and wiehou'in jefle" ox jam, and in which the return "from high speei'iso low speefi mey be similarly efieeted; "e0 provide on were power fieke of, which mey be com venienfly used as required, es for operation of e, eefling reel or other purposes; and to provioie' the "noise mechanism in e simple, simeEy confirmation with it'he eerie readflv eceessibie and the Whole preeficei; em? eiem'; for the puepoees inieniefi.

'EPiee various novel feeeuree of? construction, combination we relations of parts by which the foregoing and oeher fiesirefofie objects are et'ieinefi will be elem from eke :foiiow'mg specifieeiiion, in connection Wifoh the eeeom penying: drawings forming pere'of flee seme.

The drawings referred to are muetreeive of one commercial embodimem'of file inven mien, one as Wm be clear from the broad seem of eL-eixm etwc'ture mey very wit om, iiepertme feom the true spirit and scope 1e invention.

1g. 11 is o, side eievehioe of e eompie'ee hill with en em oefiii'eem of the hoist mechanism izhe present im'veefion inooepomized ehewein; 2 is e pl-em View of? file mo ohiee with the exagine ehazfe eemoved between the sprockets 15, 163 to skew "the main drive she-f2: and two speefl finishes 'beiew the some; Fig; 3 is e transverse seetieeei View the (1mm anti ofloe? parts of fine hoist mechanism as on line ?*--3 of Fig. 1. Fig. 4 is a broken detail of the brake band -mo1m 't-ing.

The machine ifluetmeed is of hype oov intermediate portion of iihe betweee is skowze in o the table atone end and the engine 8 at the opposiee end, the letter her-leg shown as of the mverfied V ovlntdeze type eoverefl m "Sheidon :eeeem ezeeee, Mey wee,

carries e Ybevel pinion 13 in mesh hevei gear M- on the eejoie. The dif speedl for oiu'sches 10 end 11 is eeooee in the illustration having one ep gear 15 on the motor eheffeb other sprocket gear 16 end Toy member 1? keyec? on the main Shalii) the jew clutch members 10 11 M151 no e'bEe inio coupled engegemem with he? ?o a pivoted shifter lever 18 opeietefl' by 19 from e rocker arm 20 on rock 21 having e% the oueeicie of we e eiueeh iever 2%, A dutch is shown interposed in the line shelving end; es operebie 5mm foot pedal 24 and linkage eonneciaione 25 and 2e, so thee ehe 'sebie may Toe em; into enfii out o opere'iion es required,

The drum of hoist :ie iedioei'efl e6; 2"

ee keyed eat 28 oge shaft 29 which is :oumefiei in enei-ffeietion keeringe fifiwemovebiy beltec'i e5; 31 on the horizentei seeps or s'iemflfiers 322 of subseen tiefiy bebop-e51 side frames momeeed on the side sifie of ihe mein The upper portions of the bshepeci side freezes eye shown as Pereoel ezeediefl by emgifler Some-es 3% extending from flee shoulflere 32 owe? the denim hearings to the upper ver bieel pOTfiUKRS of the side frames end exalted place eat may lower and up e1 exude efi 35, so *bhey may Keediy removeel 15mm over eke drum beerimge when for any flee Gram is $0 he amounted. Fee 3mm fie es @eeving brake flanges end 3?, bolted to the opposite enfi heede of the same, wieh which cooperate the brake hands 38, 39, mmueee on ex ueiizer ber 48 em. link 41 connected Wieh fame ereeizefii shezft 412 havingen' operating lever 43.

The drive of the drum is-efiec'tel through o ring bolted to the inner niece of the hrne dongs 37 in n space hetween thnt flenge end the ndjecent herd of the drum, Fig, 3. Enguged with this drum gem, he-

5 low the drum is s low speed drive pinion t5 on as short cross-sheila do cnrrying at its inner end n hovel peer t? in driven engage ment with e heve pinion 48 on the msin shntt 12 end controlled by e clutch 49. This cross shsit is shown journslled at its outer end at 50 on the side sill oi the frame and as journelled nt its inner end st 51, in the herring memher 52 tor the mein shstt, this construction insurin proper meshing reled tion of the two heve goers. The low 5 seed drive pinion 45 is indiceted'ns controlle by u slidnhle {p.w clumh member 53 keyed on the cross s nit end shittshle into and out of driving reletion with the pinion by menus of n shir 5t operated by linhnge 55 from the low speed .clutch lever 5t. v The high speed drive of the drum is enitected in the present disclosure by menus of n pinion li'l in mesh with the drum genr tat end mounted on the cnthesd shntt 58, which is journnlled in'loenrings 59 on the upper verticnl portions of the side trsmes in uposition to the renr of n verticel center line (Fi 1) intersecting the centers of the drum 34? end ow speed gear nines; This arrangement oi the ns will-he clearly nppnrent in Fig, l, the nssemhling oi the machine ennh es the drum to he rolled or slid into 8 end out off mesh with the drive genrs withthe drum on the horizontnl shelves 32 which ere wholly uncovered when the Memes 34 ere removed is it further hid in such mount ing end unmountin operations. Control 4% of the high speed rive is effected in the present disclosure by n henvy duty friction clutch so mounted on the cnthend shntt nnd controlled hy n shiimr tori: 61 on rock shaft 62 journelled in the upper portion of the 4555 heme and cnrrying n hnnd lever 63, Duel control'ot this high speed clutch isshown he provided for, by having n linl; 6t connected with clutch leverfit at the upper end end extending down to n toot pedel 85.

e cnthend shaft 58 is shown us driven hy men oil as sprocket pinion 6d thereon engsgied hy sprocket chain 67 running over it sprocket geer 88 on the outer end of the 55 crew shntt t8, the proportions of such genring heing'such us to import the desired high speed to the drum when pinion 57 is clutched in driving relstion to the drum genr. e cethends d9 ore shown on the outer ends of no the cntheed sheit in position for convenient use of e some. As shown pnrticulsrly in Ft. '2 end 3, the sprochetdrive for the cetheeds end both the low s end hi h 3H1! drum geering ere ell coated on t e did for side or the mschine, ewsy ire the drill out disturhing the letter sndthe mounting of ers stntion sdjscent' the various controls de-.

scrihed.

To provide n power tokeod for driving s hniling reel or other purpose, n sprocket 69 is shown loosely mounted on the driven sleeve 70 of the high speed clutch and ndupted to he cut into service when required by r, 'uw clutch member 71 kc ed on said sleeve nt 2 end shittahle by lever 3 from the position shown in Fig. 3, where it is locked in driving relation to the highs eed inion 57 over into driving relation to t e to e 0d sprocket 69', This teke ed drive instead of being of the chain sprocket t pe may he of any other stundnrdform of rive end the clutch by which the some is cut into end out of service may he of the jaw type disclosed, or on other form suite to the desired contro The operation as shown, by which the high speed drum driving gear is cut out of service when the power take 0d is brought into service is pnrticulerly desirnhle, preventing possible confusion between operation of the ell operetions mey he governed from the one v stetion. a

With the invention disclosed, the drill may stnrt, stop, reverse and drive the hoist or the tnhle, or both st diherent speeds in either direction end may stnrt the hoist with the low speed genring end, without stopping, tshe up the load with the high s eed gearing i duull end without jar or jer Conversethe sittfrom high speed drive heck to t e low hoist o rntion many he edected essily nnsmoothly y utilising the characteristic o rntions oi the trictionsl end positive clutches in the high speed and low speed drives. Both drive genre work on the e drum gear, so thnt onl one drum geer is necessery, end this use 0 only one dr gesr ennhles the spooling ortion of the drum to he mode longer, for some spuce hetween the side trnmes, then where two sepsrete drum goers hove to he provided. The mounting of the drum hearings on steps on the side trounce end the piecing of the driving gesr ones hehind n dinrnetricsl line passing thron h the drum unis, so thst the drum con he slid ulong the herring shelves and in feet, rolled out of end into engsgement with the drive genre ere important structurnl sdvsnto s. e hrncing oi the upper endsot the sie irnrnm end the quick removuhility of the hrs steies the csthend structure end ecconiplishes this without msterinll interfermg with thermos n e Mill driving of the drum from below at one s eed and from above at ad ilferent speed provi es a desired balance both from structural and power standpoints. The high speed clutch on the cathead shaft gives a fl'y-wheel effect,

-which aids the operation of this shaft and -69 is being utilized for power purposes. It

will be evident that the various other controls disclosed enable full and efiicient utilization of the machine.

The brake band setting shaft 42 is shown in Figs. 1 and 3 as journalled in the side frames 33 and Figs. 3 and 4 show how the fixed ends of these bands are anchored to the side frames by means of the inwardly pro- 1 jecting lugs or brackets 77 on these ames with which the bolts 78 of the dead ends of the-bands are connected. Thus the bands are entirely supported and operated by the side frames and as the drum is journalled on these same side frames constant alinement of the brake drums and brake bands is assured and the bands may be kept in more efiective condition.

The high speed clutchmay be of the positive type if desired, but it is considered preferable at this time to use the impositive or frictional form of clutch so that it can be thrown in to gradually take the load off the low speed gearing. The operation of this clutch is aided by having the foot pedal connection 64, to aid the hand lever 63, theoperatorusing either the lever or foot pedal or both, the pedal being desirablein throwing in the clutch which necessarily is of heavy construction and may require considerable power to close it.-

' The low speed clutch 53 is shown in Fig. 2 as of the s iral jaw type to enable an over-running and uncoupling action for automatically uncoupling this clutch as the frictional clutch is engaged to kick out the load. Thus the low speed clutch is made to automatically kick out as the frict on high speed clutch comes into action. With this high speed frictional clutch in control. the driller or operator may uncouple the drive to the drum at anv. time without stopping the engine and without reversing the engine as has been necessary heretofore where square 3 aw or positive clutches. were used in the h gh speed drive. 7

What is claimed is:

1. In apparatus of the class disclosed, a hoisting drum, low speed and high speed drive gearing for the same, said low speed earing including a positive clutch and the high speed gearing including an impositive clutch, with means for independently and conjointly controlling said clutches to enable the high speed gearing to take the load off the low speed gearing and tovreturn the load to the low speed gearing, both while the machine is running, said low speed and high speed gearing further including shafting above and below the drum on which the clutches are ,mounted, with gears on said shafting, a drum gear meshed by both said gears and in which said shafting includes shafts both located to one side of a diametrical axis of the drum so that said drum may beremoved without disturbing said shafts.

2.. In apparatus of the class disclosed, a hoisting drum,lowspeed and high speed drive gearing for the same, said low speed caring including a positive clutch and the big speed gearing including an impositive clutch, with means for independently and conjointly controlling said clutches to enable the high speed gearing to take the load off the'low speed gearing and to return the load to the low speed gearing, both while the machine is running, said low speed and high speed gearing further including shafting above and below the drum on which the ,clutches are mounted, with gears on said shafting, a drum gear meshed b both said gears and in which said shafting includes shafts both located to one side of a diametrical axis of the drum, so that said drum maybe removed without disturbing said shafts and said drum being mounted on shelves open toone side to admit of such removal of the druin.

3. In apparatus of the dlass disclosed, a hoisting drum,low speed and high speed drive gearing for the same, said low speed caring including a positive clutch and the big speed gearing including an impositive clutch, with means for independently and conjointly controlling said clutches to enable the high speed gearing to take the load off the low speed gearing and to return the load to the low speed gearing, both while the machine is running, said low speed and high speed gear ing further including shafting above and below the drum on which the clutches are mounted with gears on said shafting, a drum gear meshed by both said gears and in which .said shafting includes shafts both located to one side of a diametrical'axis of the drum, so that said drum may be removed without disturbin said shafts, said drum being mounted on she ves opening at one side to admit of such removal of the drum and braces for the supporting structure of the drum extending over the open sides of said shelves but readily removable to enable the quick removal of the drum.

4. in a hoist of the character disclosed, sub stantially iL-shaped side frames providing upright portions and open bearing shelves, 2.

drum havin bearin c removabl T mounted on said shelves, removable braces extending from the shelves over the drum hearings to the upright portions of the L-fr'ames, shafts below the bearing shelves and projecting to the outside of the upright portions of the L-frames and gears on said shafts and drum for operation of the drum.

5. In apparatus of the character disclosed, a main drive shaft, a cross-shaft driven thereby, a drum, drive gearing from said cross 'shaft to said drum, a cathead shaft, drive gearing from said cathead shaft to the drum and drive gearing from the cross shaft to said c'athead shaft.

.6. ln apparatus of the character disclosed, a main drive shaft, a cross-shaft driven thereby, a drum, drive gearing from said cross shaft to said drum, a cathead shaft,

- drive gearing from said cathead shaft to the drum, drive gearing from the cross shaft to said cathead shaft, said drive gearings including clutch meansby which the drive of the drumfrom the cross shaft and from the cathead shaft may be independently controlled. i

7. In apparatus of the character disclosed, a main drive shaft, a cross-shaft driven thereby, a drum, drive gearing' from said cross shaft to said drum, a cathead shaft,

rece es drat difierent speeds, clutch means for independently controllinsaid two w it: c drive gearing, a power ta pd on the shaft above the drum, clutch means for couplin said power take-0E in driven relation wit the shaft and means for driving said shaft and whereby the drum may be selectively driven through either the hi h speed or low speed gearing, or the drum e permitted to rest when the power take-0d is in use.

in testimony whereof I ailix my si ature.

wanno SHEL cs,

drive gearing from said cathead shaft to the drum, drive aring from the cross shaft to said cathead s aft, said drive gearings including clutch means by which the drive of the drum from the cross shaft and from the combination of a hoisting drum, low

speed drive gearing for said drum and inand clutch means by will ' eluding a clutch, high speed drive gearing I for said drum and including a clutch, means for controlling said low speed and high speed clutches and said low. speed drive I clutch being of the over-running automatical- 1y uncoupling type to automatically uncouple the low speed caring under the increased speed; operation efiected' by the coupling action of the high speed drive clutch, a power take-0d and controlling clutch means therefor enabling use of said power take-0d when the low and high speed grive gearings are not in use for driving the rum.

10. In hoist mechanism of the character 0 disclosed, a hoisting drum, shaftsabove'and below said drum, drive gearing from said shafts to the drum and arranged to drive the 

